Sheridan, IN
Ken Biddle, who ran the precision machine shop that anchored Sheridan, built the airport on his farm three miles north of town; construction started in 1946 and the field was flying by 1948, first for his own company airplanes and then for northwest Hamilton County. Two runways sit on the 126 acres, the paved one now 3,760 feet. In July 2025 Hamilton County bought the field outright, its second airport after Indianapolis Executive, keeping Sheridan the county's home for piston flying while the jets go to KTYQ.
The Indianapolis Water Company's second reservoir after Geist, built by damming Cicero Creek northwest of Noblesville; it filled in early 1956 and doubled the city's water supply when it came online. Named for Howard Morse, the company executive who planned it. The lake runs about six and a half miles from the dam at the Noblesville end north to the town of Cicero at its head, 1,500 acres with roughly 35 miles of shoreline, nearly all of it lined with homes and marinas; a clean orientation point in the farm country north of the city.
An 800-acre outdoor living history museum along the White River in Fishers, about 4nm north-northeast of KUMP; created by Eli Lilly in 1934. On the grounds: 1836 Prairietown, a recreated Indiana village with costumed interpreters; an 1863 Civil War Journey; and the 1859 Balloon Voyage, a tethered helium balloon commemorating the Lafayette flight that carried the nation's first airmail. The orange-and-yellow balloon, one of only five tethered helium balloons in the country, rises to about 370 feet on its cable in good weather during the April-through-October season, and it is the property's signature from the air.
A $200 million, 400,000-square-foot Formula 1 facility built on land that used to be part of Indianapolis Metropolitan Airport; a 2015 deal between Fishers and the Indianapolis Airport Authority opened 211 of the field's 445 acres to development, and this is what rose on it. The building is the corporate headquarters for the Cadillac F1 team and TWG Motorsports and a manufacturing facility for the team's race cars; Cadillac joined Formula 1 as the grid's eleventh team for the 2026 season, with additional operations in North Carolina and at Silverstone in England. The site was originally planned as Andretti Global's campus for its IndyCar and sports-car programs, museum included, before the project pivoted to Formula 1. For pilots the notable part is the setting: a world-championship race shop sharing a fence line with a general-aviation field, visible from the pattern.
J.K. Lilly Jr. spent the 1930s through the 1950s buying up land along Eagle Creek and reforesting it into a private preserve; he gave it to Purdue in 1958, and after the creek's serious 1957 flood the city bought the land for a flood-control reservoir. The dam was finished in 1969, the park opened in 1972, and the result is one of the largest municipal parks in the United States: about 3,900 acres of woods wrapped around 1,400 acres of water, all inside the city limits.